function http(method,url,options){
  let xhr = new XMLHttpRequest();
  xhr.open(method, url);
  xhr.onload = ()=>{
    options.success && options.success(xhr.response);
  };
  xhr.onerror = () => {
    options.fail && options.fail(xhr);
  };
  xhr.send(options.data);
}
export default{
  get(){}
  ,post(url,options){
    return http('post',url,options)
  }
  ,put(){}
  ,delete(){}
  ,patch(){}
}

